error TS1206: on anonymous class

[devpaul]

I am trying to use a decorator with an anonymous class (class expression) on TypeScript 1.8.9 and am receiving the error: "error TS1206: Decorators are not valid here."

const decorator: MethodDecorator = function (target: Object, propertyKey: string,
    descriptor: TypedPropertyDescriptor<any>): TypedPropertyDescriptor<any> {
    return descriptor;
};
const C = class { 
    @decorator method() {} 
};

I didn't see anything addressing decorating anonymous classes in the roadmap, so I am filing this issue to either provide clarification to other people in my situation or to mark a bug.

[mhegazy]

looks like a duplicate of #7342